| 年度 | 实际值 |
|---|---|
| 1992 | 56656 |
| 1993 | |
| 1994 | |
| 1995 | 43041 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 39396 |
| 2000 | 40095 |
| 2001 | 37249 |
| 2002 | 37165 |
| 2003 | 30289 |
| 2004 | 42168 |
| 2005 | 43442 |
| 2006 | 40453 |
| 2007 | 36629 |
| 2008 | 40698 |
| 2009 | 43718 |
| 2010 | 44407 |
| 2011 | 40679 |
| 2012 | 47705 |
| 2013 | 47804 |
| 2014 | 48563 |
| 2015 | 49825 |
| 2016 | 59634 |